Floating dock.



- PATENTED MAY 14, 1907.

A. F.- W IKING. FLOATING nocx.

APPLICATION FILED MAR. 12, 190 6.

2 SHEETS-SHEET 1 Inventorfinders I By his 4 Witnesses:

W #4 WW Ila-853,328. A PATENTED MAY 14, 1907.

A. 1-". 'WIKING.

FLOATING DOCK.

APPLICATION FILED MAR. 12, 1906.

' 2 SHEETS-SHEET 2.

ANDERS FREDRIK WIKING, OF STOCKHOLM, SWEDEN.

FLOATING DOCK.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed March 12, 1906. Serial No. 306,039.

10 it whom it may concern:

Be it known that I, ANDERs FREDRIK WIKING, mechanical engineer, a subject of Sweden, residing at 63 Slussplau, Stock- 5 holm, Sweden, have invented new and useful Improvements in Floating Docks, of which the following is a specification.

The floating docks hitherto known are made up of a pontoon, provided on either or on both sides with upright, box-shaped walls of equal or different height, which is so proportioned, that neither of them or only the lower one (if they are of different height) will submerge totally, when the dock is lowered 1 for receiving the vessel. This lowering, as is well known, is efiected by admitting water into the pontoon, which will keep its upright position during the sinking so that the vessel can be introduced above it; the water is then 2 pumped out, whereby the pontoon is lifted together with the vessel.

The present invention has for its object a floating dock, which is so arranged, that it assumes an inclined position during the admission of the water for the introduction of the vessel, and afterward is swung back in its horizontal position while lifting the vessel. Consequently this dock is, as regards its stability, independent of special exterior 3 arrangements or constructions, which is not 'the case with docks with one single, high, box-shaped wall, for instance ofi-shoredocks. For effecting the aforesaid swinging the pontoon is provided with an extension 3 5 beyond the box-shaped wall, said extension forming a lever, around the outer endof whichthe swinging takes place. Said ex tension consists either of a latticework construction, if the dock is a simple one, or of a 4 pontoon, if the dock is adapted for docking of two vessels, i. e. double walled.

In the accompanying drawings a dock embodying the invention is illustrated in two different positions in Figures 1 and 2, while Fig. 3 shows a double dock.

2 is the pontoon, 1 the extension serving as a lever, '3 the box-shaped wall of the dock, and 4 the other box-shaped wall, which is 1 much lower than thegformer.

stance by rods 6.

In using the dock water is admitted in the compartments of the pontoon 2, so that the pontoon swings about the wall 4 and sinks with its opposite side, thus making it possible to introduce the vessel 8 above the pontoon, Fig. 1. Then the water is removed from the compartments, of the pontoon 2 so that the dock resumes its horizontal position and the vessel is lifted above the water, Fig. 2. If on the other side of the pontoon is placed a wall 5 of the same kind as the wall 4, and the extension 1 is also arranged as a pontoon with compartments, a double-dock is provided, and another vessel 7 may be introduced above the extension 1 in the same way as described before, by swinging the dock around the box-shaped wall 5 by introducing and removing water into and from the said extension 1.

The compartments are filled and emptied in the usual way, and the vessels are supported in the dock in any suitable way, as for in- If the vessels are not set right during the docking, they will assume an inclined position in the dock, see the left hand side of Fig. 3, but they can be set right afterward, see the right hand side of Fig. 3.

The present dock shows the advantages over those hitherto known of being more simple; its stability is independent of exterior constructions and when constructed as a double-dock, its capacity is equal to that of two docks, so that its initial cost is much less than that of the other docks. It may finally be added, that the clock of course is intended only for small vessels.

Having thus described my invention, I claim:

1. In a floating dock, the combination with a pontoon having a wall at one side, of an ex tension rigidly connected to and projecting from said wall in a direction opposite to the pontoon and having at its outer end a low, box-shaped floating wall.

2. In a floating dock, the combination of pontoons having a central wall and two boxshaped floating walls rigidly connected to the two sides of the pontoon.

3. In a floating dock, the combination of a pair of pontoons rigidly connected to a centrally located Wall and each having at its one end a floating Wall of less height than said centrally located Wall.

4. In a floating dock, the combination of a pontoon having a Wall at one side, of an extension rigidly connected to and projecting from said Wall in a direction opposite to the pontoon and provided at its outer end with a IO Wall of less height than said first Wall.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses.

ANDERS FREDRIK WIKING.

Witnesses: I

CARL FRIBERG, BIRGER NORDFELDT. 

